@article{00697114,
title = {Nonresonance conditions for fourth order nonlinear boundary value problems.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {17},
year = {1994},
pages = {725-740},
doi = {10.1155/S0161171294001031},
zbl = {0810.34017},
language = {en},
url = {http://dml.mathdoc.fr/item/00697114}
}
de Coster, C.; Fabry, C.; Munyamarere, F. Nonresonance conditions for fourth order nonlinear boundary value problems.. International Journal of Mathematics and Mathematical Sciences, Tome 17 (1994) pp. 725-740. doi : 10.1155/S0161171294001031. http://gdmltest.u-ga.fr/item/00697114/